diff --git a/modules/fonts/default.nix b/modules/fonts/default.nix
index a072df2..195edd6 100644
--- a/modules/fonts/default.nix
+++ b/modules/fonts/default.nix
@@ -49,7 +49,7 @@ in
               echo "updating font $font..." >&2
               ln -fn -- "$f" /Library/Fonts 2>/dev/null || {
                 echo "Could not create hard link. Nix is probably on another filesystem. Copying the font instead..." >&2
-                cp -fP "$f" /Library/Fonts
+                rsync -az --inplace "$f" /Library/Fonts
               }
           fi
       done
diff --git a/tests/fonts.nix b/tests/fonts.nix
index 007c652..ff29957 100644
--- a/tests/fonts.nix
+++ b/tests/fonts.nix
@@ -17,7 +17,7 @@ in
 
     echo "checking activation of fonts in /activate" >&2
     grep "fontrestore default -n 2>&1" ${config.out}/activate
-    grep 'ln -fn ".*" /Library/Fonts' ${config.out}/activate || grep 'cp -fP ".*" /Library/Fonts' ${config.out}/activate
+    grep 'ln -fn ".*" /Library/Fonts' ${config.out}/activate || grep 'rsync -az --inplace ".*" /Library/Fonts' ${config.out}/activate
     grep 'rm "/Library/Fonts/.*"' ${config.out}/activate
   '';
 }